In 2014, Rokudenashiko created a Manko-kayak (vagina boat) using 3d technology, which allows objects to be scaled up or down. Using this technology, the size of the Manko can be moved freely. From the very beginning of her Manko art, Rokudenashiko wanted to turn the dark and obscene image of the Manko into an industrial product that would fit naturally into people's lives. So she tried to make it into a cover for a mobile phone, which people today hold in their hands all the time. When she actually tried to make it, the 3d-printed resin was too hard and the iPhone wouldn't fit.